how long do jacket potatoes take in the oven

Jacket potatoes typically take about 45 minutes to 1 hour to bake in a preheated oven at around 200-220°C (400-450°F). For small to medium potatoes, baking for about 1 hour is sufficient, while larger potatoes may take up to 1 hour 20 minutes or even up to 2 hours for very large ones. The key signs of doneness are a crispy, golden skin and a soft, fluffy inside. Baking directly on the oven shelf or on a baking sheet both work, and poking the potato skin with a fork before baking helps prevent bursting. Rubbing the skin with oil and sprinkling salt enhances the flavor and crispiness.